001/*
002 * ModeShape (http://www.modeshape.org)
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *       http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.modeshape.common.function;
018
019/**
020 * Represents a function that accepts one argument and produces a result.
021 * 
022 * @author Randall Hauch (rhauch@redhat.com)
023 * @param <T> - the type of the input to the function
024 * @param <R> - the type of the result of the function
025 */
026public abstract class Function<T, R> {
027
028    public abstract R apply( T input );
029}